Patents by Inventor Toshiaki Kuniyasu

Toshiaki Kuniyasu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Semiconductor light emitting device
    Patent number: 6268230
    Abstract: By providing an area where an Au film 28b is removed and a Ti film 28a is exposed along the plane tangent to the side where the p-n junction of a semiconductor chip is exposed, sticking of the Au film 28b to the chip side or protruding of the film as a flash from the side is prevented, which normally provides a starting place for creep of a solder 42 on the chip side, which in turn causes p-n junction short-circuiting when dividing of chips.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: July 31, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Toshiaki Kuniyasu